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EN-MC32110 Magnesium vs. ACI-ASTM CA6N Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CA6N steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN-MC32110 magnesium and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
17
Fatigue Strength, MPa 80
640
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 220
1080
Tensile Strength: Yield (Proof), MPa 140
1060

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 99
740
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 500
1400
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
23
Thermal Expansion, µm/m-K 26
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
2.5
Embodied Energy, MJ/kg 150
35
Embodied Water, L/kg 920
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
180
Resilience: Unit (Modulus of Resilience), kJ/m3 210
2900
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
38
Strength to Weight: Bending, points 38
30
Thermal Diffusivity, mm2/s 58
6.1
Thermal Shock Resistance, points 12
40

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
77.9 to 83.5
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 0.5
Nickel (Ni), % 0 to 0.010
6.0 to 8.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0